Rails 6.1 development.rb undefined method `year' for 1:Integer

[schneems]

Steps to reproduce

git clone https://github.com/schneems/rails_61_boot_bug
cd rails_61_boot_bug
bundle install
rails c

There is a 1.year in the development.rb file, for some reason the activesupport core extensions aren't yet applied when this file (and other config files) are attempted to be loaded. You can see the commit that introduces the bug here schneems/rails_61_boot_bug@a3d207c

The only other modification I made was

Expected behavior

The app to boot into a console

Actual behavior

An error occurs:

	15: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/railties/lib/rails/engine.rb:612:in `block in <class:Engine>'
	14: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/railties/lib/rails/engine.rb:612:in `each'
	13: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/railties/lib/rails/engine.rb:613:in `block (2 levels) in <class:Engine>'
	12: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/activesupport/lib/active_support/dependencies.rb:324:in `require'
	11: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/activesupport/lib/active_support/dependencies.rb:291:in `load_dependency'
	10: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/activesupport/lib/active_support/dependencies.rb:324:in `block in require'
	 9: from /Users/rschneeman/.gem/ruby/2.6.5/gems/zeitwerk-2.1.10/lib/zeitwerk/kernel.rb:23:in `require'
	 8: from /Users/rschneeman/.gem/ruby/2.6.5/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	 7: from /Users/rschneeman/.gem/ruby/2.6.5/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
	 6: from /Users/rschneeman/.gem/ruby/2.6.5/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
	 5: from /Users/rschneeman/.gem/ruby/2.6.5/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
	 4: from /Users/rschneeman/.gem/ruby/2.6.5/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
	 3: from /Users/rschneeman/Documents/projects/tmp/boot_bug/config/environments/development.rb:1:in `<main>'
	 2: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/railties/lib/rails/railtie.rb:216:in `configure'
	 1: from /Users/rschneeman/.gem/ruby/2.6.5/bundler/gems/rails-921b55d300fe/railties/lib/rails/railtie.rb:216:in `instance_eval'
/Users/rschneeman/Documents/projects/tmp/boot_bug/config/environments/development.rb:63:in `block in <main>': undefined method `year' for 1:Integer (NoMethodError)

System configuration

Rails version: Master (SHA 921b55d)

Ruby version: 2.6.5

[santib]

@schneems Thanks for the sample app and the reproduction steps, it was fun to troubleshoot this error 🤗

[santib]

@schneems I opened a PR but seems like the solution wasn't good enough. Would you like to give me some directions on how should this be solved? I'd like to be able to use ActiveSupport in the config files without an explicit require when upgrading to Rails 6.